IRLF 


LIBRARY 

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THE  UNIVERSITY  OF  TEXAS 

No.  184. 


FOUB    TIMES    A     MONTH 

SCIENTIFIC  SERIES    NO.  18 


MAY  22,  1911 


Contributions  from  the  School  of  Geology 

FAUNA  OF  THE   BUDA    LIMESTONE 

BY 

FRANCIS  LUTHER  [WHITNEY 

INSTRUCTOR   IN   GEOLOGY  AND  PALEONTOLOGY  IN  THE 
..UNIVERSITY    OP    TEXAS 


/ 


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/#  L 


EARTH 

SCIENCES 

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BULLETIN 


OF 


THE  UNIVERSITY  OF  TEXAS 

NO.   184 

FOUR  TIMES  A  MONTH 

SCIENTIFIC  SERIES  NO.   18  MAY   22,   1911 

Contributions  from  the  School  of  Geology 

FAUNA  OF  THE    BUDA   LIMESTONE 

BY 

FEANCIS  LUTHER  WHITNEY 

INSTRUCTOR  IN  GEOLOGY  AND  PALEONTOLOGY  IN  THE 
UNIVERSITY  OF  TEXAS 


PUBLISHED   BY 

THE  UNIVERSITY   OF   TEXAS 

AUSTIN,   TEXAS 

Entered  as  second-class  mail  matter  at   the   post  office   at 
Austin,  Texas 


SCIENCES 


E  L.  CLARK 


ttJ 


CONTENTS. 


Page. 

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55 

SCIENCES 


CE  L.  CLARK 
CONTENTS.  5 


Page. 

Prefatory  note  ........................................  9 

Bibliography    ........................................  7 

Description  of  species  .................  .  .............  '.  .  .  .  11 

Mollusca    ...........................................  11 

Pelecypoda   .....  .....................  .............  11 

Arcidae    ........................................  11 

Pinnidae    .......................................  11 

Pernidae    .......................................  12 

Ostreidae    ......................................  12 

Pectinidae    .....................................  13 

Spondylidae    ....................................  13 

Anomidae    ......................................  14 

Mytilidae    ....................  .  .  ................  15 

Pholodomyacidae    ............  .......:  ...........  15 

Pachymyidae    ................................  .  .  16 

Pleurophoridae   .................................  17 

Crassatellitidae   ......  .  ..........................  17 

Veneridae  ......................................  18 

Gastrochaenidae    ...............................  19 

Gasteropoda   ......................................  20 

Naticidae    ............................  ..........  20 

Cerithiidae  ...............  .  .....................  20 

Fusidae    ...............  ........................  22 

Volutidae  ......................................  22 

Acteonidae  ..............  .  ......................  23 

Ringiculidae  ....................  .  ............  ...  23 

Cephalopoda    ......................  ...............  24 

Turrilitidae   ..........................  .  _____  ......  24 

Arthropoda    ................  ........................  27 

Crustacea  .......................................  .  27 

Brachyura   .....................................  27 

Plates   .........................  .  .....................  29 

Index  .  55 


ILLUSTRATIONS 

Plate         I.  Arcidae,  Pinnidae,  Pernidae,  Ostreidae,  Pectinidae. 

Plate       II.  Spondylidae,  Anomidae,  Mytilidae. 

Plate      III.  Pholodomyacidae. 

Plate      IV.  Pholodomyacidae. 

Plate       V.  Pachymyidae. 

Plate      VI.  Paehymyidae. 

Plate    VII.  Pleurophoridae,  Veneridae,  Crassatellitidae,  Gas- 

trochaenidae. 

Plate  VIII.  Naticidae. 

Plate     IX.  Naticidae. 

Plate       X.  Cerithiidae,  Naticidae,  Acteonidae,  Eingiculidae. 

Plate     XI.  Fusidae,  Volutidae. 

Plate    XII.  Turrilitidae. 

Plate  XIII.  Brachyura. 


BIBLIOGRAPHY. 


Bosc,   E.,   Bol.   Institute   Geologico   de  Mexico,   Nums.   24,   25. 

1906,  1910. 

Choffat,  P.,  Recueil  D 'Etudes  Paleontol.     Faune  Cret.,  du  Por- 
tugal.    1886. 
Conrad,  T.  A.,  Rept.  U.  S.  and  Mexican  Bound.  Surv.,  Vol.  I, 

Pt.  2,  1857. 

Cragin,  F.  W.,  Fourth  Ann.  Rept.  Texas  Geol.  Surv.,  1893. 
d'OrUgny,  A.,  Paleont.  francaise,  Terr.  Cret.,  1840-1860. 
Gobi,  W.  M.,  Paleont.  CaL,  Vols.  I  and  II,  1864-1869. 
Goldfuss,  A.,  Petfr.  Germaniae,  1862. 
HiU,  R.  T.,  Texas  Geol.  Surv.  Bull.  No.  4,  1889. 

Paleont.  of  the  Cret.  Form,  of  Texas,  1889. 
Hill,  R.  T.,  and  Vaughan,  T.  W.,  U.  S.  Geol.  Surv.,  Bull.  151, 

1898. 

Lasswitz,  Rudolf,  Geol.  und  Paleont.  Abh.  (E.  Koken),  1904. 
Roemer,  F.,  Die  Kreidebildungen  von  Texas,   1852. 

Neues  Jahrbuch  Min.,  Geol.,  und  Paleont.,  1887. 
Shattuck,  G.  E.,  U.  S.  Geol.  Surv.,  Bull.  205,  1903. 
Shumard,  B.  F.,  Proc.  St.  Louis  Acad.  Sci.,  Vol.  I,  1856-1860. 

Proc.  Boston  Soc.  Nat.  Hist.,  Vol.  VIII,  1862. 
Stolicska,  F.,  Paleont.  Indies,  1866-73. 
White,  C.  A.,  Smithson.  Miss.  Coll.,  Vol.  XIX,  1880. 

.     Eleventh  Ann.  Rept.  U.  S.  Geol.  and  Geog.  Surv.  Terr., 
1877. 

Twelfth  Ann.  Rept.  U.  S.  Geol.  und  Geog.  Surv.  Terr., 
1882. 

Archivos  Museu  Nacional  Rio  de  Janeiro,  1887. 
Zekeli,  F.,  Die  Gasterop.  der  Gosaugebilde,  1852. 


FAUNA  OF  THE  BUDA   LIMESTONE, 


BY  F.  L.  WHITNEY. 


PREFATORY  NOTE. 

The  species  described  in  this  paper  were  first  figured  and 
described  in  a  thesis  presented  to  the  faculty  of  Cornell  Univer- 
sity for  the  A.  M.  degree. 

A  close  examination  of  material  collected  since  the  completion 
of  the  above  thesis  has  made  necessary  a  few  slight  changes. 
Some  species  have  been  withheld  from  publication  for  further 
study  with  more  satisfactory  material,  and  a  few  forms  have 
been  added. 

I  am  deeply  indebted  to  Dr.  F.  W.  Simonds  and  Prof.  G.  D. 
Harris  for  many  helpful  suggestions  and  to  my  wife,  who,  by 
careful  collection  and  presentation  of  specimens,  has  added 
greatly  to  the  number  of  species  which  I  hope  to  figure  and 
describe  in  the  near  future. 


DESCRIPTION  OF  SPECIES. 
MOLLUSCA. 

PELECYPODA. 
ARCIDAE. 

Genus   BARBATIA   Gray. 

BARBATIA  SIMONDSI  n.  sp. 

PL  I,  fig.  6. 

Dimensions. — Length,  55mm. ;  breadth,  32mm. 

Description. — Shell  medium,  elongate,  inequilateral;  beaks 
near  anterior  end,  inflated,  directed  forward;  anterior  margin 
short,  rounded;  ventral  margin  nearly  straight;  posterior  mar- 
gin rounded,  slightly  truncate  above ;  dorsal  margin  subparallel 
to  the  ventral;  side  of  valve  with  a  depression  extending  from 
the  beak  obliquely  backward  and  downward  to  the  ventral  mar- 
gin; surface  marked  with  concentric  lines  of  growth  crossed  by 
fine,  well  pronounced,  radiating  striae,  which  cover  the  entire 
surface  of  the  shell. 

This  shell  resembles  Area  galliennei  d'Orbigny,  but  it  is 
slightly  different  in  form,  and  the  striae  do  not  alternate  in 
size.  It  also  resembles  Barbatia  micronema  Meek  and  Area  gal- 
liennei var.  trarmtensis  Cragin,  but  comparison  with  Cragin's 
type,  the  equivalent  of  Meek's  species,  shows  that  the  form  and 
markings  are  somewhat  different. 

Localities. — Barton  Creek  and  Shoal  Creek,  Austin,  Texas. 

PINNIDAE. 

Genus  PINNA  Linnaeus. 

PINNA  sp. 
PI.  I,  fig.  3. 

Description. — There  are,  at  hand,  two  specimens  of  this  spe- 
cies, but  both  are  too  fragmentary  for  description.  The  specimen 
figured  was  found  near  the  contact  of  the  Buda  with  the  Del  Bio. 

Localities. — Shoal  Creek  and  Bouldin  Creek,  Austin,   Texas. 


12  University  of  Texas  Bulletin. 

PERNIDAE. 

Genus  INOCERAMOUS  Sowerby. 

INOCERAMOUS  sp. 

PL  I,  fig.  5. 

Dimensions. — Length,  50mm. ;  breadth,  35mm. 

Description. — Shell  subovate,  ventricose,  inequilateral;  hinge 
oblique  to  long  axis;  umbo  narrow,  prominent,  incurved.  Shell 
ornamented  externally  and  internally  with  rounded,  concentric 
plications,  separated  by  grooves  of  similar  width.  The  plica- 
tions are  very  fine  at  the  beak,  but  gradually  increase  in  size 
toward  the  base. 

There  is  only  one  specimen  of  this  species  in  this  collection, 
and  it  is  too  fragmentary  for  determination.  The  outlines  shown 
in  the  figure  may  not  be  accurate,  but  are  the  result  of  following- 
down  the  parts  of  shell  and  cast  while  removing  the  rock  cover- 
ing them. 

Locality. — Barton  Creek,  Austin,  Texas. 

OSTREIDAE. 

Genus  ALECTRYOXIA  Fischer. 

ALECTRONIA  CARINATA  Lamarck. 

PL  I,  figs.  1,  2. 

Ostrea  carinata  Roemer,  1849,  Texas,  p.  394. 

Ostrea  carinata  Roemer,  1852,  Die  Kreide.  von  Texas,   p.  75, 

Taf.  9,  fig.  5. 
Ostrea  carinata  Conrad,  1857,  Rept.  U.   S.   and  Mex.   Bound. 

Surv.,  Vol.  I,  Pt.  2,  p.  156,  PL  10,  fig.  6. 
Ostrea  carinata  White,  1884,  Fourth  Ann.  Rept.  U.   S.   Geol. 

Surv.,  p.  293,  PL  43,  figs.  1-4. 

Ostrea  carinata  Hill,  1889,  Texas  Geol.  Surv.,  Bull.  No.  4,  p.  6. 
Alectryonia  carinata  Hill,  1898,  U.  S.  Geol.  Surv.,  Bull.  No.  151, 

p.  26. 

Dimensions. — Length,  42mm. ;  breadth,  10mm. 
Description. — Shell   narrow,    curved,   moderately    auriculate ; 
beaks    depressed,    slightly   twisted;    surface    ornamented    with 
twelve  or  more  strong,  narrow,  sharp  ribs,  which,  in  some  speci- 


Fauna  of  the  Buda  Limestone.  13 

mens,  are  ornamented  with  two  or  three  rows  of  tubercles;  ribs 
more  elevated  on  the  convex  side  of  the  shell;  ventral  margin 
strongly  dentate. 

The  specimens  collected  from  the  Buda  have  not  attained 
such  vigorous  development  as  those  from  the  Georgetown. 

Locality. — Shoal  Creek,  Austin,  Texas. 

PECTINIDAE. 

Genus  PECTEN  Mueller. 

PECTEN  WRIGHTII  (Shumard). 

PL  I,  fig.  4. 

Janira  wrigktii  Shumard,  1860,  Trans.  Acad.   Sci.,   St.  Louis, 

Vol.  I,  1856-1860,  p.  607. 
Vola  (Janira)  wrightii  Hill,  1889,  Geol.  Surv.  Texas,  Bull.  No. 

4,  p.  8. 

Vola  wrightii   Cragin,   1892,   Fourth   Ann.    Kept.    Geol.    Surv. 
Texas,  p.  217,  PL  32,  figs.  2,  3. 

Dimensions. — Length,  22mm. ;  height,  28mm. 

Original  description. — Shell  ovate,  subtrigonal,  longest  diameter 
from  beak  to  base;  superior  valve  flat  or  slightly  concave,  marked 
with  three  strong,  rounded,  plications,  which  are  prolonged  at  the 
base  into  prominent  angles;  inferior  valve  strongly  convex;  anterior 
and  posterior  slopes  abrupt,  margins  straight  and  diverging  from  the 
beak  at  an  angle  of  about  40°;  surface  ornamented  with  four  very 
prominent,  simple  radiating  ribs  or  folds  on  the  body  of  the  shell, 
and  one  much  less  developed  within  the  margin  on  either  side.  Both 
valves  are  also  elegantly  marked  with  crowded,  strongly  waved  con- 
centric, filiform  striae;  beaks  elongated,  slender,  incurved;  wings  un- 
known. 

Locality. -^Shosil   Creek,   Austin,   Texas. 

SPONDYLIDAE. 

Genus  SPONDYLUS  Linna3us. 
SPONDYLUS  CRAGINI  n.  sp. 
PL  II,  figs.  7,  8. 

Dimensions. — Greatest  length,  35mm. ;  greatest  breadth,  27mm. 
Description. — Shell    variable,    inequilateral,    inequivalve,    ob- 
lique.     Inferior   valve   the   larger,   ventricose,   produced,    orna- 


14  University  of  Texas  Bulletin. 

mented  exteriorly  with  faint  costae  and  thin  lamellae;  interior 
with  fine,  flat,  wavy,  radiating  costse,  separated  by  grooves  of 
equal  width.  Superior  valve  convex,  ornamented  with  many, 
irregular,  wavy,  radiating  costae,  eight  of  which  are  stronger 
than  the  others,  and  separated  by  three  strong  costae,  often  sup- 
plemented by  weaker  ones.  The  strong  ribs  sometimes  bear 
lamellar  spines,  which,  in  the  adult,  are  confined  to  the  umbonal 
region.  In  the  young  specimens,  all  the  ribs  are  spine  bearing, 
and  the  spines  extend  throughout  the  length  of  the  shell.  Ears 
transversely  ribbed. 

This  species  resembles  S.  kystrix  Goldl,  both  in  young  and 
adult  stages.  However,  there  are  eight  heavy  costae  on  this 
species,  whereas  S.  hystrix  has  only  six. 

Locality. — Shoal  Creek,  Austin,  Texas. 

SPONDYLUS  TEXANUS  n.  sp. 
PL  II,  figs.  1,  2,  3. 

Dimensions. — Length,  25mm. ;  breadth,  23mm. 

Description. — Shell  small,  subtrigonal,  inequilateral,  auricu- 
late;  anterior  straight;  posterior  slightly  produced;  base  regu- 
larly rounded;  surface  marked  by  fifty  or  more  fine,  uneven, 
irregular,  sometimes  dichotomous  costae,  about  equal  in  width  to 
the  grooves  'separating  them.  Ears  ornamented  with  fine,  ob- 
lique, pronounced  striae ;  interior  marked  with  costaa,  correspond- 
ing to  those  on  the  outside,  strongest  at  base  of  shell,  thereby 
giving  it  a  crenulate-serrate  appearance;  muscle  impression 
with  a  raised  border  in  thickened  portion  of  shell.  Right  valve 
unknown. 

Locality. — This  and  the  above  species  were  found  in  the 
chalky  beds,  about  ten  feet  below  the  contact  with  the  upper 
beds  at  Thirtieth  Street,  Shoal  Creek,  Austin,  Texas. 

ANOMIIDAE, 

Genus  ANOMIA  Miiller. 

ANOMIA  GENICULATA  n.  sp. 

PI.  II,  figs.  4,  5. 

Dimensions. — Length,  10mm.;  breadth,  llmm. 

Description. — Shell    small,    sub-ovate,    acuminate;    left    valve 


Fauna  of  the  Buda  Limestone.  '       15 

convex,  geniculate,  ornamented  with  eight  strong,  radiating 
costas,  terminating  in  hollow,  lamellar  spines,  at  the  genicula- 
tion.  Below  the  geniculation,  the  surface  is  marked  by  heavy 
lines  of  growth,  with  only  a  trace  of  the  costae.  Right  valve 
ornamented  with  five  or  more  radiating  costas  extending  to  the 
margin  and  bearing  four  concentric  rows  of  spines. 

The  hinge  and  interior  were  unknown  when,  in  my  thesis,  I 
described  this  shell  as  Plicatula  genicidata  n.  sp.  Recently, 
however,  material  has  been  gathered,  indicating  that  it  should 
be  referred  to  the  genus  Anomia. 

Locality. — Shoal  Creek,  Austin,  Texas. 

MYTILIDAE. 

Genus  MODIOLA  Lamarck. 

MODIOLA    AUSTINENSIS   n.    Sp. 

PL  II,  fig.  6. 

Dimensions. — Length,  about  40mm. ;  breadth,  18mm. 

Description. — Shell  elongate,  subcuneate,  arcuate,  inflated  an- 
teriorly, compressed  posteriorly;  beaks  subterminal,  twisted  for- 
ward ;  umbonal  ridge  prominent,  sloping  abruptly  to  the  ante- 
rior ;  surface  ornamented  with  concentric  lines  of  growth,  crossed 
by  numerous  fine  striae  radiating  from  the  beak,  and  covering 
the  entire  shell. 

Locality. — Shoal  Creek,  Austin,  Texas. 

PHOLODOMYACIDAE. 

Genus  HOMOMYA  Agassiz. 

HOMOMYA  BUDAENSIS  n.   sp. 

PL  III,  figs.  1,  2.    PL  IV,  figs.  1,  2. 

Dimensions. — Length  about  110  mm. ;  breadth,  60mm. ;  thick- 
ness 61mm. 

Description. — Shell  large,  globose,  equivalved,  inequilateral, 
greatly  produced  and  broadened  posteriorly;  anterior  margin 
short,  curved;  ventral  margin  deeply  curved;  posterior  margin 
broadly  rounded;  dorsal  margin  curved,  subparallel  with  ven- 
tral; umbos  globose,  approximate,  elevated,  curved  inward  and 


16  University  of  Texas  Bulletin. 

slightly  forward,  situated  anteriorly;  shell  closed  anteriorly, 
gaping  posteriorly.  Surface  marked  by  lines  of  growth,  which 
vary  considerably  in  size. 

.This  shell  resembles  very  closely,  H.  vulgar  is  Shattuck,  but 
differs  from  it  in  the  curve  of  the  dorsal  and  ventral  margins, 
the  expansion  of  the  posterior,  the  greater  proportional  thickness 
of  the  shell,  and  the  ornamentation. 

Locality. — Shoal  Creek,  Austin,  Texas.  From  the  top  of  the 
formation  downward,  about  six  feet. 

PACHYMYIDAE. 

Genus  PACHYMYA  Sowerby. 

PACHYMYA  AUSTINENSIS  VAR.  BUDAENSIS  n.  var. 

PI.  V:  PL  VI. 


Pachymya  austinensis   Shumard,   1859,    Trans.    Acad.   Sci.    St. 

Louis,  Vol.  I,  pp.  604-605. 
Pachymya  austinensis  White,  1879,  Eleventh  Ann.  Kept.  U.  S. 

Geol.  and  Geog.  Surv.  Terr.,  p.  298,  PI.  8,  figs.  1,  a,  b; 

PI.  5,  figs.  7,  a,  b. 
Pachymya  austinensis  Hill,  1889,  Geol.  Surv.  Texas,  Bull.  No. 

4,  p.  15. 
Pachymya  austinensis  Shattuck,  1903,  U.  S.  Geol.  Surv.,  Bull. 

205,  p.  26. 

Dimensions. — Length,    about    15cm. ;    breadth,    about    9cm. ; 
thickness,  about  5.5cm. 

Description. — Shell  large,  heavy,  gibbose;  beaks  anterior,  in- 
curved, approximate;  umbonal  slope  angulated  from  the  beaks 
to  the  posterior  extremity;  anterior  margin  short,  narrowly 
rounded ;  posterior  margin  truncate,  narrowly  rounded  to  angu- 
late  below ;  ventral  margin  concave  in  the  middle,  more  rounded 
anteriorly  than  posteriorly;  dorsal  margin  nearly  straight,  sub- 
parallel  to  the  ventral;  sides,  with  a  depression  extending  from 
below  the  beaks,  obliquely  backward  and  downward  t6  the  ven- 
tral margin;  surface  ornamented  with  strong,  concentric  lines 
of  growh,  crossed  by  granulate  lines  radiating  from  the  beaks. 
This  shell  is  very  closely  related  to  P.  austinensis  Shum.  and 
may  be  identical  with  it,  but  the  Buda  type  is  much  higher  pos- 
teriorly, and  not  so  greatly  angulated  on  the  umbonal  slope. 


Fauna  of  the  Buda  Limestone.  17 

Locality. — Shoal   Creek,  Austin,   Texas. 

PLEUROPHORIDAE. 

Genus  ARTICA  Schumacher. 

ARTICA  COMPACTA   (White). 

PI.  VII,  tigs.  1,  2,  3. 

Pachymya  ?  compact  a  White,  1880,  Proc.  U.  S.  Nat.  Mus.,  Vol. 

II,  p.  297,  PI.  6,  ficjs.  3,  4.    (Smithson.  Misc.  Coll.,  Vol.  19.) 

I'aclujmya   *  compacta  White,  1883,  Twelfth  Ann.  Eept.  U.  S. 

Geol.  and  Geog.   Surv.   Terr.,  Pt.   I,  pp.  22,  23,  PL   17, 

figs.  4a,  b. 

Dimensions, — Length,  30nmi. :  breadth,  19mm. ;  thickness. 
16mm. 

Original  description. Shell  small,  narrower  posteriorly  than  an- 
teriorly, slightly  gaping  behind;  beaks  depressed,  approximate,  in- 
curved, directed  forward,  their  position  being  very  near  the  front; 
basal  margin  broadly  convex;  posterior  margin  narrowly  rounded; 
postero-dorsal  margin  forming  an  oblique  downward  and  backward 
truncation  of  that  part  of  the  shell;  cardinal  margin  nearly  straight, 
subparallel  with^  the  basal  margin,  much  shorter  than  the  full  length 
of  the  shell;  ligament  short,  its  area  depressed  and  sharply  defined; 
front  very  short,  depressed  beneath  the  beaks  and  narrowly  rounded 
below;  umbonal  ridges  prominent  and  angular  or  subangular;  the 
space  above  and  behind  them,  moderately  broad  and  flattened;  the 
remainder  of  each  valve  somewhat  regularly-  convex.  Hinge  and 
interior  markings  unknown.  Surface  marked  by  the  ordinary  con- 
centric lines  of  growth. 

»  A  study  of  the  material  found  in  the  Buda,  shows  that  this 
shell  is  not  a  Pachymya,  but  either  a  Trapezium  (Cypricardia), 
as  White  suspected,  or  an  Artica.  The  material  that  I  have 
been  able  to  study  indicates,  by  its  hinge  structure,  that  it  be- 
longs to  the  latter  genus. 

Locality. — Shoal  Creek,  Austin,  Texas. 

CRASSATELLITIDAE 

Genus  STEARNSIA  White. 

STEARNSIA   ROBINSI  White. 

PL  VII,  fig.  7. 

tittarusia  robins i  White,  1887,  Proc.  Acad.  Nat.  Sci.  Phila..  Pt. 
1,  for  1887,  pp.  33,  34.  PL  2,  figs.  J-9. 


18  University  of  Texas  Bulletin. 

Astarta  (Stearmia)  robinsi  Hill,  1889.  Texas  Geoi.  Surv.,  Hull. 
No.  4,  p.  11. 

Dimensions. — Length,  22mm. ;  breadth,  16mm. 

Original  description. — Shell  much  compressed,  trihedral  in  mar- 
ginal outline;  lunule  long  and  narrow,  nearly  straight  from  end  to 
end,  concave  transversely;  escutcheon  similar  in  shape  and  character 
to  the  lunule,  but  longer;  beaks  small,  appressed,  angular;  ligament 
slightly  exposed,  and  it  appears  to  have  been  divided  into  an  outer 
and  inner  portion  by  a  calcareous  septum;  umbonal  furrows  distinct, 
producing  an  emargination  at  the  posterior  part  of  the  convex  basal 
border  and  considerable  prominence  of  the  posterior  extremity;  hinge 
strong;  the  lateral  teeth  slender  and  extending  the  full  length  of  the 
lunule  and  escutcheon  respectively;  surface  marked  by  strong  con- 
centric furrows  and  ridges,  which  end  abruptly  at  the  margin  of  the 
lunule  and  escutcheon  respectively;  the  surface  of  both  lunule  and 
escutcheon  plain. 

The  material  studied  seems  to  be  a  little  different  from  that 
figured  by  White,  but  a  comparison  with  specimens  from  the 
Del  Rio  and  a  probable  Georgetown  rock,  leads  me  to  believe 
that  the  differences  are  not  sufficient  to  be  specific. 

Locality. — Shoal  Creek,  Austin,  Texas. 

VENERIDAE. 

Genus  MERETRIX  Lamarck. 

MERETRIX  LEONENSIS  ?  (Conrad). 

PL  VII,  fig.  4. 

Cytherea  leonensis  Conrad,  1857,  Rep.  U.  S.  and  Mex.  Bound. 

Surv.,  Vol.  I,  Pt.  2,  p.  153,  PI.  6,  fig.  1. 

Cytherea  leonensis  Hill,  1889,  Texas  Geol.  .Surv.,  Bull.  No.  4, 
p.  14. 

Dimensions. — Length,  35mm. ;  breadth,  44mm. 

Description. — Shell  medium,  subovate,  inequilateral,  moder- 
ately ventricose ;  beaks,  about  one-fourth  the  length  of  the 
shell  from  the  anterior  end,  small,  excavated  anteriorly,  approx- 
imate. Anterior  margin  slightly  curved,  rounded  below;  ven- 
tral margin  broadly  rounded;  posterior  margin  convex,  rounded 
below.  Surface  ornamented  with  concentric  lines  of  growth. 

The  material  found  in  the  Buda  resembles  C.  leonensis.  as 
figured  in  the  Mexican  Boundary  Report.  However,  the  anterior 
margin  seems  to  be  more  gently  curved  in  my  specimens,  while 


Fauna  of  the  Buda  Limestone.  19 

the  posterior  is  more  rounded.  The  proportions  also  agree 
closely  with  those  of  Conrad's  figure.  In  my  thesis,  I  referred 
to  this  as  Meretrix  budaensis  n.  sp.,  but  the  study  of  more  ma- 
terial inclines  me  to  refer  it  doubtfully  to  Conrad's  species. 

This  species  appears  to  be  quite  common  in  the  upper  layers 
of  the  Buda,  but  it  is  not  well  preserved. 

Localities. — Shoal  Creek,  Barton  Creek,  and  Bouldin  Creek, 
Austin,  Texas. 

Genus  TAPES  Mergerle  von  Muhifeldt. 

TAPES  AUSTINENSIS  n.  sp. 

PI.  VII,  figs.  8,  9. 

Dimensions. — Length,  25mm. ;  breadth,  17mm. 

Description. — Shell  small,  ovate-elongate,  narrowly  rounded 
anteriorly  and  posteriorly;  posterior  broader  than  anterior;  ven- 
tral margin  broadly  convex ;  dorsal  margin  convex,  gently 
sloping  downward  from  the  beaks  to  the  posterior  margin;  beaks; 
approximate,  situated  about  three-fifths  the  length  of  the  shell 
from  the  posterior  end.  Surface  marked  by  fine,  unequal,  con- 
centric lines  of  growth. 

Locality. — Shoal  Creek,  Austin,  Texas. 

GASTROCHAENIDAE. 

Genus  FISTULANA  Bruguiere. 

FlSTULANA   RUPERTI   n.    Sp. 

PL  VII,  figs.  5,  6. 

Dimensions. — Length,  23mm. ;  breadth,  12mm. 

Description. — Shell  elongate,  suboval,  broader  anteriorly  than 
posteriorly,  substance  thin ;  beaks  nearly  terminal ;  anterior  mar- 
gin broadly  rounded;  posterior  margin  narrowly  rounded;  dorsal 
and  ventral  margins  convex  and  diverging  from  the  posterior; 
beyond  the  middle  the  ventral  margin  turns  abruptly  to  meet 
the  anterior;  ventral  side  gaping  for  a  considerable  part  of  its 
length;  surface  smooth,  marked  by  fine  lines  of  growth. 

Tube  clavate  and  generally  vertical  in  the  rock. 

This  species  is  very  common  in  some  beds  of  the  Buda,  and 


'20  fnicn'sity  of  Texas  Bulletin. 

seems  to  range  from  near  the  base  to  the  top.     The  material  is 
quite   well   preserved,   but   difficult   to  remove. 
Locality. — Shoal  Creek,  Austin,  Texas. 

GASTEROPODA. 
NATICIDAE. 

Genus  TYLOSTOMA  Sharpe. 

TYLOSTOMA  HILLI  n.  sp. 
PI.  VIII,  figs.  1,  2.     PI.  IX. 

Dimensions. — Height  about  100  mm.;  maximum  breadth, 
77mm. ;  minimum  breadth,  52mm. 

Description. — Shell  large,  globose,  solid,  greatly  compressed; 
spire  elevated ;  whorls  five  and  one-half,  convex ;  body  whorl 
much  larger  than  the  others,  inflated,  about  two-thirds  the 
height  of  the  shell;  surface  smooth;  varices  well  developed  and 
strong  on  the  spire  of  the  adult;  aperture  elongate;  lip  un- 
known. 

Locality. — Barton  Creek,  Shoal  Creek,  Austin,  Texas. 

TYLOSTOMA  HARRISI  n.  sp. 
PI.  X.  figs.   12,  13,   14. 

Dimensions. — Height,  39mm. ;  breadth,  24mm. 

Description. — Spire  elevated,  conical,  whorls  five,  convex;  su- 
ture somewhat  canaliculate;  lip  thin,  slightly  reflected;  inner 
lip  callous;  aperture  acute  posteriorly,  rounded,  produced  an- 
teriorly. Surface  smooth,  marked  by  fine  lines  of  growth.  The 
varices  are  not  prominent  on  the  exterior  of  the  type  specimen. 
They  are,  however,  more  pronounced  on  some  individuals  of 
this  species.  They  are  well  developed  on  casts. 

Locality. — Shoal  Creek,  Barton  Creek,  Austin,  Texas. 

CERITHIIDAE. 

Genus   CERITHIUM  Adanson. 
CERITHIUM  STANTONI  n.  sp. 

PI.  X,  figs.  1,  2. 
Dimensions.— Height,  32mm. ;  breadth,  8mm. 


Fauna  of  the  Buda  Limestone.  21 

Description. — Spire  elevated,  angle  16°  ;  whorls  twenty-seven 
or  more ;  aperture  rounded ;  canal  short,  twisted.  Decorations 
consist  of  two  spiral  rows  of  tubercles  to  the  whorl,  situated 
at  its  edges;  posterior  tubercles  much  larger  than  anterior  of 
same  whorl.  As  the  shell  grows  larger,  the  tubercles  become 
more  separated. 

Figure  1,  PI.  X,  shows  an  adult  form;  figure  2,  a  younger 
form. 

Locality. — Shoal  Creek,  Austin,  Texas. 

CERITHIUM  SHUMARDI  n.  sp. 
PL  X,  fig.  3. 

Dimensions. — Height,  55mm.;  breadth,  30mm. 

Description- — Shell  turreted;  whorls  six  or  more,  moderately 
convex;  spire  straight,  angle  about  31°;  sutures  well  defined; 
aperture  subquadrate ;  acute  anteriorly-posteriorly ;  columella 
simple;  lip  unknown;  surface  ornamented  with  fourteen  trans- 
verse cost.-i'.  These  costse  and  the  intervening  spaces  are  traversed 
by  five  to  seven  heavy,  prominent,  rounded,  revolving  lines, 
separated  by  spaces  about  equally  as  wide,  and  ornamented  with 
five  to  seven  fine,  variable,  prominent,  rounded  lines.  This  or- 
namentation extends  over  about  one-half  the  body  whorl,  the 
lower  portion  lacking  the  transverse  costa?  but  ornamented  with 
the  same  revolving  lines,  the  heavy  ones  being  somewhat  tuber- 
culate.  This  species  is  very  similar  to  C.  aguilerae  Bose,  but 
the  lines  are  all  single,  whereas  in  that  species  some  are  paired. 
It  has  the  single  lines  similar  to  C.  debile  Zekeli,  but  the  trans- 
verse costae  are  more  numerous.  These  three  species  appear  to 
be  closely  related. 

Locality. — Shoal  Creek,  Barton   Creek,  Austin,  Texas. 

CERITHIUM  HILLI  n.  sp. 
PI.  X,  fig.  4. 

Description. — Shell  turreted;  spiral  angle  about  19°;  number 
of  whorls  unknown ;  surface  ornamented  with  twenty-four  trans- 
verse ribs  set  end  to  end,  giving  the  shell  a  fluted  appearance, 
broken  only  by  the  suture  lines.  On  the  poorly  preserved  speci- 
men at  hand,  there  is  no  evidence  of  revolving  lines. 


'2'2  Unir<  rsity  <>f  Texas  Bulletin. 

This  species  appears  to  be  quite  rare,  only  one  specimen  having 
been  obtained.  It  reminds  one  of  C.  haidingeri  Zekeli,  but  dif- 
fers from  that  species  in  the  angle  of  the  spire  and  the  character 
.  of  the  transverse  costa?. 

Locality. — Shoal  Creek,  Austin.  Texas. 

FUSIDAE. 

Genus  FUSUS  Lamarck. 

Fusus  SIMONDSI  n.  sp. 

PI.  XI,  fig.  2. 

Dimensions. — Length,  100mm.;  breadth,  about  30mm. 

Description. — Shell  elevated,  turreted;  whorls  nine,  rounded; 
sutures  well  defined ;  spire  straight,  conical,  equalling  about  one- 
half  the  height  of  the  shell;  angle  25°;  anterior  canal  long, 
straight,  deep;  lip  and  aperture  unknown;  surface  of  whorls 
ornamented  with  eight  to  ten  transverse  cpstse,  which,  with  the 
intervening  spaces,  are  crossed  by  four  to  six  prominent, 
rounded,  revolving  lines.  The  costse  are  prominent  on  the  upper 
part  of  the  body  whorl,  but  disappear  below,  leaving  only  the 
revolving  lines. 

This  species  resembles  F.  texanujs  Shattuck,  but  the  spire  and 
body  whorl  are  nearly  equal,  and  the  angle  of  the  spire  is  much 
less. 

Locality. — Shoal  Creek,  Austin,  Texas. 

VOLUTIDAE. 

Genus  VOLUTILITHES  Swainson. 

VOLUTILITHES   AUSTINENSIS   n.    Sp. 
PI.    XI,    fig.    1. 

Description. — Shell  small,  fusiform;  spire  elevated,  sutures 
well  defined;  body  whorl  large,  constituting  the  greater  part 
of  the  shell,  shoulder  rounded;  aperture  narrow,  elongate; 
canal  long,  straight,  open  and  deep ;  columella  with  three  strong, 
oblique  plaits  near  the  middle  of  the  aperture;  lip  thin.  Sur- 
face ornamented  with  about  eighteen  prominent,  transverse 
eostae  crossed  by  numerous,  fine  rounded,  revolving  lines. 

Locality. — Shoal  Creek,  Austin,  Texas. 


Fauna  of  the  Buda  Limestone.  23 

ACTEONIDAE. 

Genus   CYLINDRITES  Lycett. 

CYLINDRITES  WHITEI  n.  sp. 

PL  X,  fig.  8. 

Dimension*. — Height,  -i.Tmni. ;  breadth,  2.5mm. 

Description. — Shell  small ;  surface  marked  by  prominent  lines 
of  growth;  whorls  four;  spire  depressed,  canaliculate;  aperture 
narrow,  extending  posteriorly  to  the  end  of  the  body  whorl,  an- 
teriorly extended  below  the  body  whorl  and  narrowly  rounded ; 
eolumella  with  one  fold. 

There  is,  in  this  collection,  only  one  specimen  of  this  sepcies, 
but  it  is  quite  unlike  any  other  that  has  come  to  my  notice. 

Locality. — Shoal  Creek,  Austin,  Texas. 

RINGICULIDAE. 

Genus  CINULIA  Gray. 

ClNULIA    CONRADI   n.    Sp. 

PL  X,  figs.  5,  6,  7. 

Dimensions. — Height,  9mm.;  greatest  breadth,  7mm. 

Description. — -Shell  small,  imperforate,  subglobose ;  whorls 
three,  s:pire  short,  about  one-eighth  of  the  height  of  the  shell; 
aperture  elongate,  acute  posteriorly,  rounded  anteriorly;  outer 
lip  thickened,  smooth,  reflected;  inner  lip  callous,  with  three 
plaits,  two  of  which  are  well  up  on  the  shell;  surface  of  body 
whorl  ornamented  with  fourteen  rather  broad,  spiral  costella, 
separated  by  narrow  grooves  developed  by  a  series  of  spirally 
arranged  puncta.  The  lip  is  somewhat  broken  in  the  specimen 
studied,  but  it  appears  to  have  been  ornamented  with  two  or 
more  vertical  lines. 

Locality. — Shoal  Creek,  Austin,  Texas. 

CINULIA  PELLETI  n.  sp. 
PL  X,  figs.  9,  10,  11. 

Dimensions. — Height,  I'Smm. ;  maximum  breadth,  13mm. 
Description. — Shell    small,    solid,    subglobose;    whorls    about 
three,  rounded ;  spire  about  one-sixth  of  the  height  of  the  shell : 


24  l.'niccrxifij  of   Texas  Bulletin. 

.aperture  slightly  oblique,  rounded  anteriorly,  acute  poste- 
riorly; outer  lip  thickened,  reflected,  smooth  within;  inner  lip 
callous,  with  three  plaits,  the  upper  one  slightly  above  the  mid- 
dle of  the  aperture,  the  others  well  down.  Surface  marked 
with  about  twenty-seven  revolving,  well  defined  costella,  sepa- 
rated by  grooves  equally  as  wide,  and  crossed  by  numerous 
fine,  transverse  lines. 

Locality. — Batron  Creek,  Austin,  Texas. 

CEPHALOPODA. 
TURRILITIDAE. 

Genus  TURRILITES  Lamarck. 

TURRILITES  BRAZOENSIS  Roemer. 

PI.   XII,   fig.   1. 

Turrilites  brazoetisis  Roemer,  1849.  Texas,  p.  415. 

Turrilites  brazoensis  Roemer.  1852,  Die  Kreide.  von  ,Texas,  p.  37, 

Taf.  3,  fig.  2. 

Turrilites  brazoensis  Hill,    1889,   Texas   Geol.    Surv.,   Bull.   No. 
4,  p.  23. 

Original  description. — The  siie11  larse>  sinistral,  tuberculate; 
whorls  almost  quadrilateral,  flat  outside,  ornamented  with  four  rows 
of  large  tubercles;  the  tubercles  of  the  uppermost  row  standing  on 
the  obtusely  rounded  margin  between  the  broad  scarcely  arched  lateral 
surface  of  the  whorl  and  the  narrow  superior  surface,  and  extending 
themselves  into  plain  plaits  covering  the  superior  surface;  both  middle 
rows  consist  of  large,  pointed  tubercles;  the  lowest  row  of  tubercles, 
composed  of  smaller  tubercles,  standing  on  the  margin  of  the  inner 
surface  of  the  whorls  and  covered  "by  the  following  whorl.  The  inner 
surface,  turned  toward  the  axis  of  the  conical  spire,  covered  with 
perpendicular  plain,  plaits,  which  correspond  to  the  tubercles  of  the 
lowest  row. 

The  specimens  collected  froom  the  Buda  are  mere  fragment-. 
However,  a  fairly  complete  specimen  from  the  Georgetown 
formation  measures  in  height  20cm. ;  breadth,  9cm. 

Locality. — Barton   Creek,   Shoal   Creek,   Austin,   Texas. 

TURRILITES  ROEMERI  n.  sp. 

PL  XII,  figs.  2,  3. 
Dimensions. — Height.  36mm.;  breadth,  30mm. 


Fauna  of  the  Buda  Limestone.  25 

.  Description. — Shell  turriculate,  conical,  sinistral;  angle  49°; 
volutions  angular  in  front,  convex  behind,  overlapping;  suture 
deep;  surface  ornamented  with  four  rows  of  unequal  tubercles; 
the  anterior  row  with  about  thirty-two  tubercles,  placed  on  the 
sutural  angle  at  the  outer  end  of  ribs  which  converge  toward 
the  umbilicus;  a  second  row  of  narrow  more  elongate  tubercles 
is  placed  parallel  to  and  behind  the  first  row.  It  has  the  same 
number  of  tubercles  as  the  first.  Below  the  second,  is  a  third 
row  of  elongate  tubercles,  of  the  same  number  as  those  in  the 
other  rows.  The  fourth  row  consists  of  large,  rounded  tubercles 
placed  in  the  middle  of  the  volution,  and  numbering  about 
eleven. 

This  species  differs  from  T.  tuberculatus  Bosc,  by  the  spiral 
angle  and  the  shape  of  the  tubercles;  from  T.  gravesianus 
d'Orbiny,  by  the  more  elongate  form  of  tubercle  and  the  angle. 
In  this  species,  the  three  rows  of  smaller  tubercles  are  covered 
by  the  overlapping  of  the  adjacent  whorl,  whereas  in 
T.  tuberculatus  and  T.  gravesianus  only  one  row  is  overlapped. 
It  appears  to  be  rare  in  the  Buda,  only  one  specimen  having 
been  found. 

Locality. — Shoal  Creek,  Austin,  Texas. 


ARTHROPODA. 

CRUSTACEA. 
BRACHYURA. 

Indeterminate   Crustacean. 
PL  XIII,  fig.  1. 

There  is,  in  my  collection,  a  specimen  of  the  great  chela  of  a 
crustacean,  possibly  Paramithrax,  but  it  is  so  poorly  preserved 
chat  its  determination  is  very  doubtful. 

Locality. — Shoal  Creek,  Austin,  Texas. 

Genus  GRAPTOCARCINUS. 

GRAPTOCABCINUS  TEXANUS  Roemer. 

PI.  XIII,  figs.  2,  3. 

Graptocarcinus  texauus  Roemer,  1887,  Neues  Jahrbuch  f .  Min- 
eral, und  Paleont.  Band  1,  Heft.  2,  pp.  173-176,  figs 
'a  and  b,  text. 

Dimensions. — Length,  28mm. ;  breadth,  36mm. 

Description,  original  someivhat  modified.  —  Cephalothorax 
transverse  oval,  rounded,  five-sided  in  outline ;  enclosed  by  a 
fine,  raised,  sharp  border  separating  the  dorsal  and  ventral  sur- 
faces; dorsal  surface  moderately  convex,  flattened  centrally; 
frontal  bent  downwards,  ending  in  a  broad,  obtuse-angled, 
pointed  rostrum,  divided  medially  by  a  fine,  longitudinal  fur- 
row; outer  margin  of  rostrum  raised;  orbits  deeply  cut.  Sur- 
face coarsely  and  thickly  granulate;  between  the  grains  or  tu- 
bercles are  scattered  separate  smaller  ones.  Where  the  tubercles 
are  not  completely  preserved  and  crumbled  on  the  summits, 
they  appear  ring-like  and  deepened  in  the  centre.  On  the  cen- 
tral surface  are  two  pairs  of  converging  furrows.  The  fur- 
rows of  the  anterior  pair  are  longer  and  stronger  than  those  of 
the  posterior.  They  are  bent  slightly  inwards  and  converge  at 
an  angle  of  about  130°.  They  are  deepest  and  broadest  at 
their  outer  ends.  At  their  inner  ends,  they  are  so  weak  that 
their  junction  is  scarcely  visible.  The  furrows  of  the  posterior 


28  University  of  Texas  Bulletin. 

pair  are  at  first  parallel  to  the  anterior  pair,  then  bent  abruptly 
backwards  and  weakened  till  scarcely  traceable.  No  other 
sculpture  is  present  on  the  dorsal  surface.  The  surface  of  the 
sloping  and  inwardly  bent  ventral  side  is  almost  smooth.  It  is 
finely  granulate  only  opposite  and  just  behind  the  frontal. 
Opposite  the  front  pair  of  furrows  is  a  small  notch,  in  the 
sharp  margin  separating  the  dorsal  and  ventral  surfaces,  from 
which  a  fine,  line-like  furrow  passes  forward  in  a  moderate  curve. 
Localities. — Shoal  Creek,  Barton  Creek,  Austin,  Texas. 


PLATE  I. 


PLATE  1. 

Page. 

Figs.  1,  2.     Alectryonia  carinata   (Lam.) 12 

Fig.  3.     Pinna  sp 11 

Fig.  4.     Pecten  wrightii  Shum 13 

Fig.  5.     Inoceramous   sp 12 

Fig.  6.     Barbatia  simondsi  n.  sp 11 


Bulletin  of  The  University  of  Texas  No.  184. 


Plate  1. 


PLATE  II. 


31 


PLATE  II. 

Page. 

Figs.  1-3.     Spondylus  texanus  n.  sp 14 

Figs.  4,  5.     Anomia  geniculata  n.  sp 14 

Fig.  6.     Modiola  austinensis  n.  sp 15 

Figs.  7,  8.     Spondylus  cragini  n.  sp 13 


12 


DEAR  SIR  :  I  take  pleasure  in  sending  to  you  a  copy  of  Bulletin 
No.  9  of  The  University  of  Texas  Mineral  Survey,  entitled  "Re- 
port  of  a  Reconnaissance  of  Trans-Pecos  Texas,  North  of  the 
Texas  &  Pacific  Railway,"  by  George  Burr  Richardson. 

This  Bulletin  is  the  ninth  in  the  series  which  was  begun  in  July, 
1901.  The  other  Bulletins  are  as  follows: 

1.  Texas  Petroleum,,  July,  1901. 

2.  Sulphur,  Oil  and  Quicksilver  in  Trans-Pecos  Texas,  Febru- 
ary, 1902. 

3.  Coal,  Lignite' and  Asphalt  Rocks,  May,  1902. 

4.  The  Terlingua  Quicksilver  Deposits,  Brewster  County,  Oc- 
tober, 1902. 

5.  The   Minerals   and   Mineral   Localities  of   Texas,   January, 
1903. 

6.  The  Mining  Laws  of  Texas  and  Tables  of  Magnetic  Declina- 
tion, July,  1903. 

7.  Report  of  Progress  for  1903,  and  Topographic  Map  of  Ter- 
lingua Quadrangle  in  Brewster  and  Presidio   Counties,  January, 
1904. 

8.  The  Geology  of  the  Shafter  Silver  Mine  District,  Presidio 
County,  June,  1904. 

These  Bulletins  are  for  gratuitous  distribution  among  the  citi- 
zens of  the  State  and  to  others  upon  application. 

The  editions  of  Bulletins  Nos.  1  to  5,  inclusive,  have  been  ex- 
hausted. 

Very  truly, 

WM.  B.  PHILLIPS, 
Austin,  Texas,  November,  1904.  Director. 


Bulletin  of  The  University  of  Texas  No.  184. 


Plate  II. 


PLATE  III. 


PLATE    III. 

Page. 
Figs.  1,  2.     Homomya  bndaensis  n.  sp 15 


Bulletin  of  The  University  of  Texas  No.  184. 


Plate  III 


PLATE  IV. 


PLATE  IV. 

Page. 
Figs.  1,  2.     Homomya  budaensis  n.  sp 15 


Bulletin  of  The  University  of  Texas  No.  184. 


Plate  IV. 


PLATE  V. 


PLATE  V. 

Page. 
Paehymya  austinensis  var.  budaensis  n.  var 16 


Bulletin  of  The  University  of  Texas  No.  184 


Plate  V. 


PLATE  VI. 


PLATE  VI. 

Page. 

Pachymya  austinensis  var.  budaensis  n.  var.  x  .8 16 

Showing  surface  ornamentation. 


Bulletin  of  The  University  of  Texas  No.  184. 


Plate  VI. 


PLATE  VII. 


PLATE  VII. 

Page. 

Figs.  1-3.     Artica  compacta  (White) 17 

Fig.  4.     Meretrix   leonensis?    (Con.) 18 

Fig.  5.     Fistulana  ruperti  n.  sp 19 

Fig.  6.     Tubes  of  Fustulana  ruperti 19 

Fig.  7.     Stearnsia  robinsi  White .  17 

Figs.  8,  9.    .  Tapes  austinensis  n.  sp 19 


42 


Bulletin  of  The  University  of  Texas  No.  184. 


Plate  VII. 


PLATE  VIII 


PLATE  VIII. 


Page. 
Tylostoma  hilli  n.  sp. 20 


44 


Bulletin  of  The  University  of  Texas  No.  184. 


Plate  VIII. 


~'"-:-  *'> 


•••^^ 

&-- 


t 


PLATE  IX. 


PLATE  IX. 

Page. 
Tylostoma  hilli  n.  sp 20 


46 


Bulletin  of  The  University  of  Texas  No.  184. 


Plate  IX. 


PLATE  X. 


47 


PLATE  X. 

Page. 

Figs.  1,  2.     Cerithium  stantoni  n.   sp 20 

Fig.  3.     Cerithium  shumardi  n.  sp ....-.' 21 

Fig.  4.     Cerithium  hilli  n.  sp 21 

Figs.  5-7.     Cinulia  conradi  n.  sp 23 

Fig.  8.     Cylindrites  whitei  n.  sp.  x3 23 

Figs.  9-11.     Cinulia  pelleti  n.  sp. . . 23 

Figs.  12-14.     Tylostoma  harrisi  n.  sp 20 


Bulletin  of  The  University  of  Texas  No.  184. 


Plate  X. 


1 


10 


11 


PLATE  XL 


49 


PLATE  XI. 

Page. 

Fig.  1.     Volutilithes  austinensis  n.  sp 22 

Fig.  2.     Fusns  simondsi  n.  sp •  •     22 


so 


Bulletin  of  The  UniTersity  of  Texas  No.  184. 


Plat*  XI. 


PLATE  XII. 


PLATE  XII. 

Page. 

Fig.  1.     Turrilites  brazoensis  Roemer 24 

Pigs.  2,  3.     Turrilites  roemeri  n.  sp 24 


bulletin  of  The  University  of  Texas  No.  184. 


Plate  XII. 


PLATE  XIII. 


PLATE  XIII. 

Page. 

Figs.  1,  2.     Graptocarcinus  texanus  Roemer    27 

Fig.  3.     Crustacean  indet  x  .75 :     27 


54 


Bulletin  of  The  University  of  Texas  No.  184. 


Plate  XIII. 


I 


INDEX. 


[Names  in  italic  are  synonyms;  figures  in  black-face  type  are  numbers  of  page  on  which  detailed  descriptions  appear; 

figures  in  italic  denote  illustrations.] 


Acteonidae .23 

Alectryonia  Fischer 12 

Alectryonia  carinata 

(Lamarck)    12,  30 

Alectryonia  carinata  Hill 12 

Anomia  Miiller 14 

Anomia  geniculata  n.  sp 14,  32 

Anomidae 14 

Area  galliennei  d'Orbigny 11 

galiiennei    var,   tramitensis 

Cragin    11 

Arcidae 11 

Arthropoda 27-28 

Artica  Schumacher 17 

compacta     (White) 17,  4% 

Barbatia  Gray 11 

micronema  Meek 11 

simondsi  n.  sp 11,  30 

Brachyura 27-28 

Cephalopoda 24-26 

Cerithiidae 20 

Cerithium  Adanson 20 

aguilerae  Bose 21 

debile  Zekeli    21 

haidingeri  Zekeli 22 

hilli  n.  sp 21,  48 

schumardi  n.  sp 21,  48 

stantoni  n.  sp 20,  48 

Cinulia  Gray    23 

conradi   n.   sp 23,  48 

pelleti  n.  sp 23,  48 

Crassatellitidae    17 

Crustacea 27 

Crustacean  indet    27,  54 

Cylindrites  Lycett 23 

whitei  n.  sp 23,  48 

Cytherea  leonensis  Conrad 18 

leonensis  Hill 18 

Pistulana  Bruguiere 19 

ruperti  n.  sp 19,  42 

Pusidae     ,22 

Fusus  Lamarck 22 

simondsi   n.    sp 22,  50 

texanus    Shattuck 22 

GasteroDoda    20-24 

Gastrochaenidae    19 

Graptocarcinus   texanus   Roe- 

mer 27,  54 

texamts  Roemer 27 

Homomya  Agassiz 15 

budaensis  n.  sp 15,  84,  36 

vulgaris  Shattuck 16 

Inoceramous  Sowerby 12 

sp 12,  30 

Janira  wrightii  Shumard 13 


Meretrix  Lamarck 18 

budaensis  n.  sp 19 

leonensis?    (Conrad)    .  .  .  .  18,  42 

Modiola  Lamarck    15 

austinensis  n.  sp 15,  32 

Mollusca    11-26 

Mytilidae    15 

Ostreidae    12 

Ostrea  carinata  Roemer  et  al. . . .  12 

Pachymyidae    16 

Pachymya  Sowerby 16 

austinensis    var.    budaensis 

n.  var 16,  38,  40 

austinensis  Shumard  et  al 16 

compacta  White 17 

Pecten  Miiller    13 

wrightii  (Shumard) 13,  30 

Pectinidae    13 

Pelecypoda 11-20 

Pernidae     12 

Pholodomyacidae     15 

Pinna  Linnaeus 11 

sp 11,  30 

Pinnidae     11 

Pleurophoridae    17 

Plicatula  geniculata  n.  sp 15 

Ringiculidae     23 

Spondylidae 13 

Spondylus  Linnaeus    13 

cragini  n.  sp 13,  32 

hystrix  Goldfuss    14 

texanus  n.  sp 14,  32 

Stearnsia  White 17 

robinsi  White .  .  .  17,  42 

roUnsi  White 17 

Tapes     Mergerle     von     Muhl- 

feldt 19 

austinensis  n.  sp 19,  42 

Turrilites  Lamarck 24 

brazoensis  Roemer 24,  52 

brazoensis  Roemer   24 

gravesianus  d'Orbigny 25 

roemeri  n.  sp 24,  52 

tuberculatus  Bosc 25 

Turrilitidae    24 

Tylostoma  Sharpe 20 

harrisi  n.  sp 20,  48 

hilli  n.  sp 20,  44,  46 

Veneridae 18 

Vola  (Janira}  wrigntii  Hill 13 

Vola  torightii  Cragin 13 

Volutidae 22 

Volutilithes  Swainson 22 

austinensis  n.  sp 22,  50 


BRUCE  L. 


I 


THE  UNIVERSITY  OF  TEXAS  BULLETIN. 

(Continued  from  inside  front  cover) 

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